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GATE CSE 2008 | Question: 19

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The Breadth First Search algorithm has been implemented using the queue data structure. One possible order of visiting the nodes of the following graph is:

  1. $\text{MNOPQR}$
  2. $\text{NQMPOR}$
  3. $\text{QMNPRO}$
  4. $\text{QMNPOR}$
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